基于人体模型模拟三亚市不同地理朝向眼部暴露紫外辐射分布的研究

发布时间：2018-04-29 01:11

本文选题：眼 + 头部模型　；参考：《环境与职业医学》2017年03期

【摘要】：[目的]利用人体头部模型模拟研究不同地理朝向时眼部紫外辐射的暴露量及其时间分布。[方法]使用自制的安装有高紫外灵敏度光纤光谱仪的眼紫外线暴露模型在中国三亚地区进行实地监测,起始方位是模拟眼部正对南方向,顺时针旋转监测,每隔6°自动监测一次,获得大量对应不同地理朝向的眼部暴露紫外辐射数据。[结果]东向和西向眼暴露长波紫外光(UVA)分别在上午9:00和下午16:15(~50°太阳天顶角)左右达到最大值,分别为2 324.88μW/cm~2和2 442.68μW/cm~2,眼暴露中波紫外光(UVB)分别在上午9:45和下午15:50(~40°太阳天顶角)左右达到最大值,分别为93.83μW/cm~2和92.54μW/cm~2;南向和北向眼暴露UVA和UVB峰值均出现在正午12:00(~7°太阳天顶角)左右,分别为1 056.09μW/cm~2和61.45μW/cm~2。眼部暴露紫外辐射最大辐照度在地理朝向上的分布是正东偏北和正西偏北12°左右。东向和西向最大剂量百分比分别出现在9:00—10:00和15:00—16:00,为19.67%和17.11%,南向和北向最大剂量百分比均出现在12:00—13:00,为12.68%和12.98%。[结论]不同地理朝向时眼部紫外辐射高暴露的时间段各不同。
[Abstract]:[objective] to study the exposure and time distribution of eye ultraviolet radiation in different geographical orientations using a human head model. [methods] an eye ultraviolet exposure model with high UV sensitivity optical fiber spectrometer was used for field monitoring in Sanya, China. The initial orientation was to simulate eye rotation in the direction of the south, clockwise and clockwise. A large number of ultraviolet radiation data corresponding to different geographic orientations were obtained by automatic monitoring every 6 掳. [results] the maximum value of UVA was reached at 9:00 in the morning and 50 掳in the afternoon at 16: 15, respectively, in the eye exposed to long wave ultraviolet light (UVA) in the east and west directions, respectively. The maximum values of UVB were 2 324.88 渭 W/cm~2 and 2 442.68 渭 W / cm ~ (2), respectively, at 9:45 in the morning and 15: 50 in the afternoon, respectively. The maximum values were 93.83 渭 W/cm~2 and 92.54 渭 W / cm ~ (-2), respectively, and the peak values of UVA and UVB in eye exposure were about 12: 00 ~ 7 掳at midday (n = 12: 00 ~ 7 掳), respectively, and the maximum values of UVA and UVB in eye exposure were about 12: 00 in the morning and 15: 50 in the afternoon, respectively, and the maximum values were 93.83 渭 W/cm~2 and 92.54 渭 W / cm ~ (2), respectively. It is 1 056.09 渭 W/cm~2 and 61. 45 渭 W / cm ~ (2), respectively. The distribution of maximum irradiance of eye exposure in geographical orientation is about 12 掳from east to north and from west to north. The maximum dose percentages appear at 9: 00-1000-10: 00 and 15: 00-16: 00, which are 19.67% and 17.11, respectively. The maximum dose percentages in the south and north directions appear in 12: 00-13: 00, 12.68% and 12.98%, respectively. [conclusion] the time periods of high ultraviolet radiation exposure are different in different geographical orientations.
【作者单位】：中国医科大学公共卫生学院;
【基金】：国家自然科学基金项目(编号:81273034)
【分类号】：R188

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